Home / 89,159.06-133,947.56-84,115.18

Finding the Fourth Proportional to 89,159.06, 133,947.56 and 84,115.18

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Solution

The fourth proportional to 89,159.06, 133,947.56 and 84,115.18 is: 126,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,159.06 : 133,947.56 = 84,115.18 : x
  2. Step 2: Convert to fraction form
    89,159.06/133,947.56 = 84,115.18/x
  3. Step 3: Cross multiply
    89,159.06x = 133,947.56 × 84,115.18
  4. Step 4: Simplify right side
    89,159.06x = 11,267,023,119.96
  5. Step 5: Solve for x
    x = 11,267,023,119.96/89,159.06
  6. Step 6: Final answer
    x = 126,369.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.